(D) The molar mass of water vapor $(H_2O)$ is $18 \ g/mol$,while the average molar mass of dry air (mostly $N_2$ and $O_2$) is approximately $29 \ g/m

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(D) The molar mass of water vapor $(H_2O)$ is $18 \ g/mol$,while the average molar mass of dry air (mostly $N_2$ and $O_2$) is approximately $29 \ g/mol$.Since water vapor replaces heavier air molecules,wet air is actually lighter than dry air,making the Assertion incorrect.The density of dry air is much lower than the density of liquid water,making the Reason also incorrect.

Class 11 Chemistry States of Matter Mix Examples- States of Matter

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Assertion : Wet air is heavier than dry air.
Reason : The density of dry air is more than density of water.

AIIMS 1999 All AIIMS

A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
C
If the Assertion is correct but Reason is incorrect.
D
If the Assertion is incorrect but the Reason is correct.

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Assertion : Wet air is heavier than dry air.Reason : The density of dry air is more than density of water.

Similar Questions

The three states of matter are the result of what?

Two statements are given below.Statement-$I$: Viscosity of liquid decreases with increase in temperature.Statement-$II$: The units of viscosity coefficient are Pascal sec.The correct answer is

What is the ratio of kinetic energies of $3 \ g$ of hydrogen and $4 \ g$ of oxygen at a certain temperature?

If the rate of diffusion of a gas having twice the molecular mass of nitrogen is $56 \ mL \ s^{-1}$,then the rate of diffusion of nitrogen will be ........... $mL \ s^{-1}$.

Identify the correct statements from the following:$(A)$ The compressibility factor $(Z)$ for an ideal gas is $1$.$(B)$ Uranium isotopes (${ }^{235}U$ and ${ }^{238}U$) are separated by converting them into $UF_6$ vapours.$(C)$ Decrease in temperature increases the kinetic energy of gas molecules.

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Assertion : Wet air is heavier than dry air.
Reason : The density of dry air is more than density of water.

Two statements are given below.
Statement-$I$: Viscosity of liquid decreases with increase in temperature.
Statement-$II$: The units of viscosity coefficient are Pascal sec.
The correct answer is